Restore the tests that could be reused

Author: lf-

src/cargo/ops/cargo_new.rs

@@ -126,6 +126,14 @@ impl NewOptions {
 
 #[derive(Deserialize)]
 struct CargoNewConfig {
+    #[deprecated = "cargo-new no longer supports adding the authors field"]
+    #[allow(dead_code)]
+    name: Option<String>,
+
+    #[deprecated = "cargo-new no longer supports adding the authors field"]
+    #[allow(dead_code)]
+    email: Option<String>,
+
     #[serde(rename = "vcs")]
     version_control: Option<VersionControl>,
 }

tests/testsuite/bad_config.rs

@@ -87,6 +87,30 @@ Caused by:
         .run();
 }
 
+#[cargo_test]
+fn bad4() {
+    let p = project()
+        .file(
+            ".cargo/config",
+            r#"
+                [cargo-new]
+                  vcs = false
+            "#,
+        )
+        .build();
+    p.cargo("new -v foo")
+        .with_status(101)
+        .with_stderr(
+            "\
+[ERROR] Failed to create package `foo` at `[..]`
+
+Caused by:
+  error in [..]config: `cargo-new.vcs` expected a string, but found a boolean
+",
+        )
+        .run();
+}
+
 #[cargo_test]
 fn bad6() {
     let p = project()

tests/testsuite/cargo_command.rs

@@ -245,6 +245,29 @@ fn displays_subcommand_on_error() {
         .run();
 }
 
+#[cargo_test]
+fn override_cargo_home() {
+    let root = paths::root();
+    let my_home = root.join("my_home");
+    fs::create_dir(&my_home).unwrap();
+    fs::write(
+        &my_home.join("config"),
+        r#"
+            [cargo-new]
+            vcs = "none"
+        "#,
+    )
+    .unwrap();
+
+    cargo_process("new foo").env("CARGO_HOME", &my_home).run();
+
+    assert!(!paths::root().join("foo/.git").is_dir());
+
+    cargo_process("new foo2").run();
+
+    assert!(paths::root().join("foo2/.git").is_dir());
+}
+
 #[cargo_test]
 fn cargo_subcommand_env() {
     let src = format!(